dm: swap target postsuspend call and setting suspended flag

This patch moves DMF_SUSPENDED flag set before postsuspend.
No one should care about the ordering, because the flag set and
the postsuspend are protected by a single lock, md->suspend_lock,
and all strict flag-checkers take the lock.

Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 40e257f..f2b993c 100644 (file)
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2550,10 +2550,10 @@ int dm_suspend(struct mapped_device *md, unsigned suspend_flags)
         * requests are being added to md->deferred list.
         */
 
-       dm_table_postsuspend_targets(map);
-
        set_bit(DMF_SUSPENDED, &md->flags);
 
+       dm_table_postsuspend_targets(map);
+
 out:
        dm_table_put(map);